Tune your car and keep it. In the meantime save some cash and buy a new M3/4 in a couple of years.
2013 Mini Cooper S Hardtop | Kite Blue | 6spd Manual | Factory JCW Exterior Pkg
2013 X5 xDrive50i | Carbon Black | M Sport + M Perf, 333M Wheels
Sold: 2012 E92 M3 | Jet Black, Fox Red/Black | DCT, ZCP